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TAC (2026) — Crypto Hack

Confirmed

Aug 22, 2026·

TAC

Amount Stolen

$7.5M

2.985B TAC

Recovered

TAC was drained of ~$7.5M (2.985B TAC) via the Cosmos EVM underflow bug, with its bonded-token pool drained. The chain was halted and funds were bridged to BNB Chain/TON and sold.

Summary

TAC was drained of ~$7.5M (2.985B TAC) via the Cosmos EVM underflow bug, with its bonded-token pool drained. The chain was halted and funds were bridged to BNB Chain/TON and sold.

How It Was Compromised — L1 via Cosmos EVM Underflow Exploit

L1Cosmos EVM Underflow Exploit

On August 22, 2026, TAC was exploited via the shared Cosmos EVM underflow bug (GHSA-7g4w-cg88-2cq2). The attacker drained the bonded-token pool of approximately 2.985B TAC (~$7.5M). The chain was halted in response. The stolen funds were bridged to BNB Chain and TON and sold.